COMMUNICATION DEVICE AND METHOD OF PEAK POWER CONTROL

WIPO Patent Application WO/2000/013360

A1

Modulator circuits (101-104) modulate four user transmission signals (using basic slots with pilot symbols inserted periodically in transmission data), or a control signal including a pilot signal and three user transmission signals (using basic slots with no pilot symbol inserted). Phase-shift circuits (105-108) vary the phases of the output signals from the modulator circuits (101-104) according to the total number of users. An adder circuit (I109) combines the in-phase components of the output signal from the phase-shift circuits (105-108), and an adder circuit (Q110) combines the quadrature components of the output signal from the phase-shift circuits (105-108). A radio section (115) modulates the output signal from the adder circuit (I109) and the adder circuit (Q110) to produce a radio signal and amplifies it.

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HIRAMATSU KATSUHIKO (JP)
UE TOYOKI (JP)

PCT/JP1999/004465

March 09, 2000

August 20, 1999

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MATSUSHITA ELECTRIC IND CO LTD (JP)
HIRAMATSU KATSUHIKO (JP)
UE TOYOKI (JP)

H04L27/18; H04B1/04; H04L5/06; H04L5/12; (IPC1-7): H04J13/04

JPH10336151A	1998-12-18
JPH09298495A	1997-11-18
EP0810753A2	1997-12-03
JPH05130191A	1993-05-25
EP0594352A2	1994-04-27
JPS61176221A	1986-08-07

Washida, Kimihito (Shintoshicenter Building 24-1 Tsurumaki 1-chome Tama-shi, Tokyo, JP)

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